Jean Baptiste Lamarck Quotes

The thesis that the living creatures have always been composed different species was established in a time where no sufficient observations had been made and when science hardly existed. This thesis is denied every day by those who have made accurate observations, who have long time observed nature and who have had the benefit from studying our musei's large and rich collections. ~ Jean-Baptiste Lamarck

All knowledge that is not the real product of observation, or of consequences deduced from observation, is entirely groundless and illusory. ~ Jean-Baptiste Lamarck

However, if we consider that all the characteristics which have been cited are only differences in degree of structure, may we not suppose that this special condition of organization of man has been gradually acquired at the close of a long period of time, with the aid of circumstances which have proved favorable? What a subject for reflection for those who have the courage to enter into it! ~ Jean-Baptiste Lamarck

First Law
In every animal which has not passed the limit of its development, a more frequent and continuous use of any organ gradually strengthens, develops and enlarges that organ, and gives it a power proportional to the length of time it has been so used; while the permanent disuse of any organ imperceptibly weakens and deteriorates it, and progressively diminishes its functional capacity, until it finally disappears.
Second Law
All the acquisitions or losses wrought by nature on individuals, through the influence of the environment in which their race has long been placed, and hence through the influence of the predominant use or permanent disuse of any organ; all these are preserved by reproduction to the new individuals which arise, provided that the acquired modifications are common to both sexes, or at least to the individuals which produce the young. ~ Jean-Baptiste Lamarck

All known living bodies are sharply divided into two special kingdoms, based upon the essential differences which distinguish animals from plants, and in spite of what has been said, I am convinced that these two kingdoms do not really merge into one another at any point. ~ Jean-Baptiste Lamarck

According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of existence to another. ~ Ernst W. Mayr

In every animal which has not passed the limit of its development, a more frequent and continuous use of any organ gradually strengthens, develops and enlarges that organ, and gives it a power proportional to the length of time it has been so used; while the permanent disuse of any organ imperceptibly weakens and deteriorates it, and progressively diminishes its functional capacity, until it finally disappears. ~ Jean-Baptiste Lamarck

It is not always the magnitude of the differences observed between species that must determine specific distinctions, but the constant preservation of those differences in reproduction. ~ Jean-Baptiste Lamarck

The entrepreneur shifts economic resources out of an area of lower and into an area of higher productivity and greater yield. ~ Jean-Baptiste Say

Regulation is useful and proper, when aimed at the prevention of fraud or contrivance, manifestly injurious to other kinds of production, or to the public safety, and not at prescribing the nature of the products and the methods of fabrication. ~ Jean-Baptiste Say

Readiness of speech is often inability to hold the tongue. ~ Jean-Baptiste Rousseau

As to the lawful pleasures of the mind, the heart, or the senses, indulge in them with gratitude and moderation, drawing up sometimes in order to punish yourself, without waiting to be forced to do so by necessity. ~ Jean-Baptiste Henri Lacordaire

When a tree, a natural product, is felled, is society put into possession of no greater produce than that of the mere labour of the woodman? ~ Jean-Baptiste Say

Taxation being a burthen, must needs weigh lightest on each individual, when it bears upon all alike. ~ Jean-Baptiste Say

A treasure does not always contribute to the political security of its possessors. It rather invites attack, and very seldom is faithfully applied to the purpose for which it was destined. ~ Jean-Baptiste Say

Who told you that one paints with colors? One makes use of colors, but one paints with emotions. ~ Jean-Baptiste-Simeon Chardin

The right of conquest has no foundation other than the right of the strongest. ~ Jean-Baptiste Rousseau

If one individual, or one class, can call in the aid of authority to ward off the effects of competition, it acquires a privilege and at the cost of the whole community; it can make sure of profits not altogether due to the productive services rendered, but composed in part of an actual tax upon consumers for its private profit' which tax it commonly shares with the authority that thus unjustly lent its support. ~ Jean-Baptiste Say

Political economy has only become a science since it has been confined to the results of inductive investigation. ~ Jean-Baptiste Say

The mind sees, the will commands, the man acts. What is it then to act? To act is to produce something. If you have produced nothing
if no result has been the fruit of your will, you have done nothing. ~ Jean-Baptiste Henri Lacordaire

The great men of antiquity were poor. ~ Jean-Baptiste Henri Lacordaire

The theory of interest was wrapped in utter obscurity, until Hume and Smith dispelled the vapor. ~ Jean-Baptiste Say

The difficulty lies, not in finding a producer, but in finding a consumer. ~ Jean-Baptiste Say

… Fourier's great mathematical poem ...

{Referring to Joseph Fourier's mathematical theory of the conduction of heat, one of the precursors to thermodynamics.} ~ William Thomson, 1st Baron Kelvin

To have never done anything but make the eighteenth part of a pin, is a sorry account for a human being to give of his existence. ~ Jean-Baptiste Say

If you have but a single ruler, you lie at the discretion of a master who has no reason to love you: and if you have several, you must bear at once their tyranny and their divisions. ~ Jean-Baptiste Rousseau

I know [my label], in any case: a double face, a charming Janus, and underneath, the house motto: "Be wary". On my business cards:"Jean-Baptiste Clamence, actor". ~ Albert Camus

Be guided by feeling alone. We are only simple mortals, subject to error. ~ Jean-Baptiste-Camille Corot

Yes, great God, these torrents of tears which flow down from my eyes announce thy divine presence in my soul. This heart hitherto so dry, so arid, so hard; this rock which thou hast struck a second time, will not resist thee any longer, for out of it there now gushes healthful waters in abundance. The selfsame voice of God which overturns the mountains, thunders, lightens, and divides the heaven above, now commands the clouds to pour forth showers of blessings, changing the desert of his soul into a field producing a hundredfold; that voice I hear. ~ Jean Baptiste Massillon

For Christians, the first of books is the Gospel and the Rosary is actually the abridgement of the Gospel. ~ Jean-Baptiste Henri Lacordaire

The chemical compounds are comparable to a system of planets in that the atoms are held together by chemical affinity. They may be more or less numerous, simple or complex in composition, and in the constitution of the materials, they play the same role as Mars and Venus do in our planetary system, or the compound members such as our earth with its moon, or Jupiter with its satellites ... If in such a system a particle is replaced by one of different character, the equilibrium can persist, and then the new compound will exhibit properties similar to those shown by the original substance. ~ Jean-Baptiste Dumas

They must know but little of mankind who can imagine that, after they have been once seduced by luxury, they can ever renounce it. ~ Jean-Baptiste Rousseau

Nothing is more detestable than a professed declaimer who retails his discourses as a quack does his medicines. ~ Jean Baptiste Massillon

I love the mountains, the light. I'm a real light junkie. ~ Marianne Jean-Baptiste

A shop-keeper in good business is quite as well off as a pedlar that travels the country with his wares on his back. Commercial jealousy is, after all, nothing but prejudice: it is a wild fruit, that will drop of itself when it has arrived at maturity. ~ Jean-Baptiste Say

So pink and swollen,Jean-Baptiste whispered,his fingers easing her lips apart,one brushing over the sensitive bud of her clit. ~ Laura Wright

There is nothing fruitful except sacrifice. ~ Jean-Baptiste Henri Lacordaire

Neither genius, fame, nor love show the greatness of the soul. Only kindness can do that. ~ Jean-Baptiste Henri Lacordaire

There are some sins which are more justly to be denominated surprises than infidelities. To such the world should be lenient, as, doubtless, Heaven is forgiving. ~ Jean Baptiste Massillon

The old men running the industry just have not got a clue. They've got to come to terms with the fact that Britain is no longer a totally white place where people ride horses, wear long frocks and drink tea. The national dish is no longer fish and chips; it's curry. ~ Marianne Jean-Baptiste

Bossuet has a sentence which is beyond the comprehension of an apostle who does not realize what must be the soul of his apostolate. It runs: "When God desires a work to be wholly from His hand, he reduces all to impotence and nothingness, and then He acts." Nothing wounds God so much as pride. ~ Jean-Baptiste Chautard